package cn.acewill.yxd.yunxundian.utils;

import android.annotation.SuppressLint;
import android.app.AppOpsManager;
import android.content.Context;
import android.content.pm.ApplicationInfo;

import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

/**
 * Created by XXX on 2017/8/3.
 */
    public class NotificationsUtils {
        private static final String CHECK_OP_NO_THROW = "checkOpNoThrow";
        private static final String OP_POST_NOTIFICATION = "OP_POST_NOTIFICATION";

        @SuppressLint("NewApi")
        public static boolean isNotificationEnabled(Context context) {

            AppOpsManager mAppOps = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
            ApplicationInfo appInfo = context.getApplicationInfo();
            String pkg = context.getApplicationContext().getPackageName();
            int uid = appInfo.uid;
            Class appOpsClass = null;
      /* Context.APP_OPS_MANAGER */
            try {
                appOpsClass = Class.forName(AppOpsManager.class.getName());
                Method checkOpNoThrowMethod = appOpsClass.getMethod(CHECK_OP_NO_THROW, Integer.TYPE, Integer.TYPE,
                        String.class);
                Field opPostNotificationValue = appOpsClass.getDeclaredField(OP_POST_NOTIFICATION);

                int value = (Integer) opPostNotificationValue.get(Integer.class);
                return ((Integer) checkOpNoThrowMethod.invoke(mAppOps, value, uid, pkg) == AppOpsManager.MODE_ALLOWED);

            } catch (ClassNotFoundException e) {
                e.printStackTrace();
            } catch (NoSuchMethodException e) {
                e.printStackTrace();
            } catch (NoSuchFieldException e) {
                e.printStackTrace();
            } catch (InvocationTargetException e) {
                e.printStackTrace();
            } catch (IllegalAccessException e) {
                e.printStackTrace();
            }
            return false;
        }
    }



